The race is on for zero emissions
A host of countries have recently announced major commitments to significantly cut their carbon emissions, promising to reach “net zero” in the coming years. The term is becoming a global rallying cry, frequently cited as a necessary step to successfully beat back climate change, and the devastation it is causing.
Put simply, net zero means we are not adding new emissions to the atmosphere. Emissions will continue, but will be balanced by absorbing an equivalent amount from the atmosphere.
Practically every country has joined the Paris Agreement on climate change, which calls for keeping the global temperature to 1.5°C above pre- industrial era levels. If we continue to pump out the emissions that cause climate change, however, temperatures will continue to rise well beyond 1.5, to levels that threaten the lives and livelihoods of people everywhere.
This is why a growing number of countries are making commitments to achieve carbon neutrality, or “net zero” emissions within the next few decades. It’s a big task, requiring ambitious actions starting right now.
Net zero by 2050 is the goal. But countries also need to demonstrate how they will get there. Efforts to reach net- zero must be complemented with adaptation and resilience measures, and the mobilization of climate financing for developing countries.
The good news is that the technology exists to reach net zero — and it is affordable.
A key element is powering economies with clean energy, replacing polluting coal — and gas and oil-fired power stations — with renewable energy sources, such as wind or solar farms. This would dramatically reduce carbon emissions. Plus, renewable energy is now not only cleaner, but often cheaper than fossil fuels.
A wholesale switch to electric transport, powered by renewable energy, would also play a huge role in lowering emissions, with the added bonus of slashing air pollution in the world’s major cities.
Electric vehicles are rapidly becoming cheaper and more efficient, and many countries, including those committed to net zero, have proposed plans to phase out the sale of fossil- fuel powered cars.